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I have a box divided by a partition. On one side I have n mole ideal gas, on the other side there's vacuum.
If I remove the partition the ideal gas will expand into the vacuum. Since the box is adiabatic and no work is applied to or by the gas, \Delta U = 0.
But what about the work used when I remove the partition? Is this so small that we neglect it?
If I remove the partition the ideal gas will expand into the vacuum. Since the box is adiabatic and no work is applied to or by the gas, \Delta U = 0.
But what about the work used when I remove the partition? Is this so small that we neglect it?